kindl



(No Model.) 2 Sheets-Sheet 1.

P. H. KINDL STRUCTURAL SHAPE AND COLUMN.

' No. 559,335. Patented Apr. 28, 1896.

ANDREW B.GRAI1AM,PHCEOUTFQWASHINGTON. D C.

2 Sheets-Sheet 2.

(No Model.)

-F. H. KINDL. STRUCTURAL: SHAPE AND G OLUMN.

Patented r. 28,1896

INVENTOR WITNESSES I UNITED STATES PATENT OFFICE.

FREDERICK H. KINDL, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE CARNEGIE STEEL COMPANY, LIMITED, OF SAME PLACE.

STRUCTURAL SHAPE AND COLUMN.

SPECIFICATION forming part of Letters Patent No. 559,335, dated April 28, 1896.

Application filed November 15 1895. Serial. No. 569,056. (No modll) To all whom it may concern.-

Be it known that I, FREDERICK I'I. KINDL, of Pittsburg, in the county of Allegheny and 'Stateof Pennsylvania, have invented a new and useful Improvement in Compound Columns, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which My invention relates to compound columns of the general type set forth in my former patent, No. 546,781, dated September 24, 1895, wherein the sections at the successive floors or parts of the building are composed of shapes of successively less size, while the column itself has substantially uniform outof column. Fig. 6 is a cross-section, and Fig.

column two of these sections are placed back to back and secured by rivets, which either pass through the contacting bases, as in Figs. 1 and 4, or through tie-plates 4, placed on opposite sides of the intermediate channel por tions, as shown in Figs. 2, 6, and 7.

In forming a column I preferably employ for the lower sections thereof the form of Fig. 4, in which coverplates are riveted to the sides of the column, the rivets passingthrough the flanges of the shapes. The upper sections of the compoundcolumn are formed by shapes of the same general form, but having shallower channels,as shown in Fig. 6, these shapes being secured together by the tie-plates 4, riveted to their channels.

It will be noticed that while the dimensions A and B of the section of Fig. 6 are the same as those of Aand B in the section of Fig. 4 the bases of the channels are spaced apart in Fig. 6 a distance 0, this distance being variable in the difierent sections. A compound column built up in this manner possesses the same advantages as those of the column shown in my former patent, while its construction is much simpler and fewer connections are necessary, as no Z-bars are employed.

I claim- A compound column, the successive sections of which are composed of two separate shapes each having an intermediate channeled portion, with vertical sides, and provided with laterally-projecting flanges, the channeled portions of the shapes of the successive sections being successively shallower but having their bases spaced apart in such a way that the dimensions A and B are constant; substantially as described.

In testimony whereof I have hereunto set my hand.

' FREDERICK H. KINDL.

\Vitnesses O. BXRNES, G. .I. HOLDSHIP. 

